[PATCHSET v2 0/6] io_uring related epoll cleanups

Hi,

One of the nastier things about epoll is how it allows nesting contexts
inside each other, leading to the necessity of loop detection and the
issues that have come with that.

I don't believe there's any reason to support nesting on the io_uring
side, in fact IORING_OP_EPOLL_CTL is a historical mistake, imho. But
let's at least try and contain the damage and disallow nested contexts
from our side.

Changes since v1:
- Add patch renaming struct epoll_filefd to struct epoll_key

 fs/eventpoll.c            | 91 ++++++++++++++++++---------------------
 include/linux/eventpoll.h |  8 ++++
 io_uring/epoll.c          | 18 +++++++-
 3 files changed, 67 insertions(+), 50 deletions(-)

-- 
Jens Axboe